S4 keeps turning off after a few seconds - Galaxy S 4 Q&A, Help & Troubleshooting

hey!
I own a Samsung Galaxy S4. Since today I cant boot the phone up anymore!!!
while watching youtube videos it sudddenly was dead, I didn`t even drop it. turning on again with the power button doesnt work, advanced boot with power button + other button doesnt work as well. only if I reinsert the battery the phone vibrates and it turns on for about 2-3 seconds, the samsun bootloader logo appears and its dead again. I have already replaced the battery with a working one, doesnt work. I removed the sd and simcard but that did not help.

Sounds a lot like a power button problem.
The exact problem is that the button is stuck or shorted, which causes the circuit to be constantly closed. In other words, it's always "pressed".

Related

Can't switch on. happened twice already

Hi
Today, I suddenly can't swtich on my Nexus 7. I am sure it still has at least 20% battery. And when I charge it, the screen doesn't display anything.
I was listening to the music with the screen off. And I unpluged the earphone due to a phone call. Then I came back after 20 minutes. I can't switch it on.
This has happened to me once. In the previous time, it had 30% battery. But I wasn't sure if I listened to music and did anything. It was OK after about one hour......
Anyone has the same issue?
Still can't switch it on. Is it bricked ????????????????????????????????????
finally, got it back to work again. By trying to do a recovery boot (vol up + vol down + power button). And first time, it didn't boot. Then press the power button again. it boots up my CyangoMod again. hahahahahaha
hope this would help other ppl

[Q] samsung s7390 went black then white then dead

I have a Samsung GT-S7390 phone. And now it seams dead. This is what happened.
I was using Google play to install Badoo and suddenly the screen went black and then gradually turned to completely white. It was unresponsive. No reaction on holding power button, or home button for a short or long time.
I didn't know how to turn it off and I didn't know a combination for a reset. So I pressed power, home and volume down buttons at the same time. The phone turned off and since then it is dead.
I tried to take out the battery for some time, take out sim card, tried all the combinations of buttons and did nothing. It is dead.
Does anyone knows what might happen to it?
Any answer is better then no answer. Please help.
Thanks!

[Q] Trouble turning on - need help desperately :)

Hi guys. So this is my situation; my phone is currently turned off.
If I hold the power button, the Samsung Galaxy S4 logo appears in with the black background, then disappears and the phone turns off after 1~2 seconds.
If I hold the power, volume down button then I get the custom OS screen. If I then choose to restart from this screen, the phone restarts and the Galaxy Logo shows for around 6-8 seconds then disappears again.
If I go to the custom OS screen again, then press restart, I can then hold the volume up button and the lock button and the blue message saying 'Recovery Booting..' along with the same black Galaxy logo then the screen disappears after 1-2 seconds seemingly turning off, then it vibrates once after a couple more seconds then does nothing again
I can not get the recovery booting screen from simply holding Volume up and the power button, I need to do it after restarting through the custom OS screen.
My phone is also suddenly not recognising the charger being plugged in. There is no observed difference between attempts to turn it on with/without the charger plugged in.
The last time the phone was properly turned on, it switched itself off at around 4-6% battery left and from then on I have this result.
So, can you guys help?
Your power button is probably faulty. Try to wiggle it lose or replace it.

Power button problem

Hi all,
I have accident on sea where one wave splashed a bag where my phone was. After small problems with "laggy" buttons everything went fine and my phone worked correctly except power button. It doesn't react. I couldn't even restart the phone. And when my battery was used I coudnt turn it on. I tried to press volume up + power button million times, or all 4 buttons, and somehow I manage to turn it on again while still I was on vacation. Few times I have entered Android recovery screen, and Power button worked perfectly there (I managed to press power button and select reboot device). And after the phone turn on power button would usually works few minutes and then it would died again.
I have installed software for simulation of power button and it worked ok. This morning somehow I decided to turn off my phone, and I couldn't even imagine what kind of problems I will have to turn it on again. Whole day I am trying to turn it on, but it doesn't react. When I pull in charger then it shows regularly battery status (70%). I am desperate :crying:
I am trying to google or find any solution how to bring it ON again without power button, but without success
Is there any way how could I turn Samsung galaxy S6 Edge Plus without power button?
And what you think, is this some kind of software problem, and maybe some factory reset or flashing might help? Or it is more likely hardware problem?
Many thanks in advance.
Can anyone help me?
I have just found this article which might help me:
How to turn ON Galaxy S6 without using the power button:
When the Galaxy S6 or Galaxy S6 Edge is turned off, press and hold the volume button for a few seconds.
While holding the volume button, connect the Galaxy to a computer using a USB cable.
Wait for your phone to boot to Download mode.
Then press down on the volume rocker to cancel the operation.
After the operation has canceled, the Galaxy will reboot and turn on.
You have successfully turned on the Galaxy S6 without using the power button.
source: http://recomhub.com/blog/how-to-turn-on-and-off-galaxy-s6-without-power-button/
But somehow this doesn't work for my phone? First I wasnt sure which volume button should be pressed, so I tried with both in all combinations and still cant get into Download mode.
But I am glad that samsung had created some workaround if power button is not working. THis used to work on older models I guess.
Is there anyone who might know the way how to turn on phone without power button?

phone wont turn on but keeps vibrating

hey guys
my phone (Samsung A40) has a problem. sometimes when my is turned off and i plug it in it shows no reaction. when i press volume down to start (because the power button is broken) it begins to vibrate in intervals. only when the battery is empty the vibrations stop. there are also some times, when i plug my phone it, the display indicates that it's charging and it is possible to boot up the phone.
maybe i should also mention that i opened up the phone the replace the battery and the volume flex cable because the whole unit didnt work. now when phone works, everything works normally except for the power button.
why does it sometimes start to vibrate and sometimes just works fine? how can i fix this problem?

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